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Making games look more "real" has been the goal of most gaming technology upgrades since 1990. Making objects and characters in the game environment move more like real things and less like inflexible computer models is a good place to start.

A lot of breakthroughs have been made in this area, from lighting effects, to cloth modeling, to wind, water, and hair movement. The one that stands out in the minds of gamers is the programming breakthrough that gives female characters' anatomy real-time bounce.

It becomes vaguely disturbing to think that such a small thing probably required a team of programmers weeks of hard work to figure out.

Note that it is very rare for other flesh on the character to act anything like real skin, even if Jiggle Physics have been implemented. In some cases, one would think that by continually having said character jumping up and down, her mammary-induced momentum would fling her several feet into the air.

Common in tournament-style Fighting Games, and Third Person Shooters featuring a Third Person Seductress. This last one is sometimes counter-productive without a free-camera system, as the default view is mostly from behind the character.

This can be considered a special case of the Male Gaze. See also the Anime Trope Gainaxing. Note that most real women, in those types of situations, would probably have the foresight to wear something more supportive.


Examples:

  • Seen in Dragonquest VIII with the character Jessica. She has enormous boobs, which jiggle and bounce, several different character models of her in skimpy clothing, and even a skill set called "Sex Appeal".
  • The Dead Or Alive series is known for having it, playing with it, and selling the game with it. An age input on the first title actually determined how much the female fighters could bounce. A later Spin Off would bring it further to the forefront by transforming the game into a beach volleyball title and eliminating the male competitors.
  • BloodRayne has it, and even has a cheat code to enable increased boob bouncing.
    • The cheat code itself is Juggy Dance Squad
  • Rumble Roses, the all-woman pro-wrestling title, of course.
  • SNK may have been the first to do it, but in 2D: Mai Shuranui from Fatal Fury was bouncing long before the DOA girls.
  • The Soul Calibur series displays this, but it is very much downplayed and almost, dare say, "realistic." The lone exception is the ninja Taki, whose breast movements, while they don't bounce too much, appear to be timed one full second behind the rest of her body.
    • Xianghua, though, has buttock jiggle physics. Note this clip.
    • Disturbingly enough, Astaroth has a chest that jiggles noticeably whenever his onscreen model moves quickly enough. Eeewww....
    • Of course this was all thrown out in Soul Calibur 3, in which all female character with the exception of the underaged Talim have been given larger breasts and costumes that allow these to bounce around in a ridiculous manner, such as when you SELECT them in the character selection bit. Astaroth's chest jiggle is still intact.
    • Just a hint, in Soulcalibur III, if you leave the shop while one of the storekeepers is gesturing, their boobs jiggle up at a ridiculous height, and then go back to normal. (I like the item-shop lady ;) )
    • If Soulcalibur III is bad, the latest game in the series, Soulcalibur IV, is even worse. Seriously, not even the two underage girls, Talim and Amy, are exempt...
  • The game Vampire The Masquerade Bloodlines has numerous female models for the player to control, depending on what type of vampire she (or, more likely, he) chooses. Oddly, only some of these have jiggle physics - others appear to have breasts made of solid metal.
  • Metal Gear Acid 2 had exceptionally hilarious and out-of-place Jiggle Physics for two main reasons - first of all, that it was a non-canon Spinoff of the Metal Gear Solid series which tended to treat breasts with the respect they deserved (i.e. jiggling realistically, subliminally and not in their own antigravity fields), and second of all that the game came with a pair of 3D goggles allowing you to see the breasts' undulatory movements in gropeable solidarity. This editor is a straight female, so is biased, but distinctly remembers feeling physically seasick at the constant, rhythmic, three-dimensional lurching of Dr. Takiyama's chest.
    • To save time, the developers used the same physics set on the ludicrous ammo pouch Snake wore on his own chest. The effect was...well.
  • The latest of the Tomb Raider games have it, as would seem obvious. The early games show exactly what is wrong with its absence; Lara's chest is literally Barbie-esque in its steely inflexibility, as if she were smuggling a pair of cannonballs in her bodysuit.
    • Pointy cannonballs.
  • Several cutscenes from 007: Agent Under Fire featured a lot of breast jiggling.
  • Ninja Gaiden Sigma features the female demon-hunter, Rachel, who fights the hordes of hell armed with a ludicrously Stripperiffic black leather outfit, a huge poleaxe and boobs that are just about big enough to each contain their own anti-gravity generator. In High Definition.
    • Particularly odd (and hilarious) is one scene where Rachel is knocked out by a powerful enemy. A few seconds after she hits the ground, the camera pans to her still body, and her breasts are still shaking side to side.
    • Considering it's by the same company that does Dead or Alive, it would be more surprising if they didn't borrow some effects.
  • In Final Fantasy X, busty gothic lolita-styled mage Lulu had breasts that moved as if they were filled with water. If you ended a battle with her hasted, they appeared to jump like a prodded frog.
  • In Final Fantasy XII, Fran's buttocks do this at several points, most notably when she walks away from other Viera in Eryut Village.
  • The Nintendo DS remake of Final Fantasy IV subverts this: One character *does* jiggle quite a lot when running, but it's overweight male character Cid, whose stomach and rear end both wobble impressively.
  • The adventure game Policenauts was quite interesting in that it named a 'Breast Jiggle Supervision Unit' in the credits. Every member of the unit was female.
  • Ironically, the Bioware RPG game Neverwinter Nights had only a single character model with jiggle physics - a female wearing a bare-shouldered Breast Plate. The armour was solid, but apparently the breasts behind it weren't attached to the woman, or snug against the armour. As something of a subversion of this, when fan-content added jiggle physics to other character models, even the most rigid steel full plate armour jiggled like a jelly castle.
  • Was pretty much the point of the Playboy game, which was basically The Sims mixed with Theme Park mixed with... Playboy. You get to have sex with a lot of girls. And take pictures of them.
  • Male version: "Bob" in the Fight Club video game. He has an estrogen imbalance from taking steroids; as the narrator of the film puts it: "This is Bob. Bob has bitch tits."
  • Judy Nails, in the XBox 360 and PS3 versions of Guitar Hero III. (She's relatively flat-chested in the PS2 and Wii versions - at least, she certainly isn't springy...)
  • Utterly averted in World Of Warcraft: characters like night and blood elves may have ears that wibble when they run, but no one's breasts are ever anything other than rock solid.
    • Having played a female dwarf Rogue for a while, and having most of my higher level characters be female, this is simply not true. Not to say it's prevalent, but it's certainly not absent in some animations.
    • For that matter, watch a Female Undead from the side as they run. Perhaps it's realistic, if more then a bit horrific, considering their... advanced state of decomposition.
  • In Haunting Ground, whenever Fiona so much as stops walking her breasts give a celebratory boing.
  • For some really, really well-done Jiggle Physics, look at EVA from Metal Gear Solid 3. Unless you're paying attention, you won't notice - her breasts move exactly like a real person's. Particularly of note is the scene where, clad in her underwear, she crawls hands and knees towards Snake as part of an attempted seduction, and her breasts actually change shape - again, exactly like a real person's. The irony kicks in when it turns out that the woman has had bust enhancement surgery, which, using the techniques from the timeline she's in, would leave her rock solid.
    • Those Philosophers really know their stuff apparently.
  • Averted in Drakengard. This editor can't remember a single female character in that game who had anything above a B-cup. Of course, there are only three major females, one of which is a child, so maybe that's to be expected.
  • In Devil May Cry 4, Trish's and thus, Gloria's bust alternates between jiggling and producing a particularly strange wave effect.
    • Lady, in her two appearances in the same game, was no different. Interestingly, Kyrie, who is characterised as more 'pure' than the others, apparently wears a bra with better support.
  • Adrianna, the female player character in Baldurs Gate: Dark Alliance, features some pretty impressive bouncing - even while armored - but is overshadowed a bit by Alyth the bartender (in typical barmaid garb), who leans forward most helpfully while she discusses your quest.
  • 3D-rendered movie example: Beowulf. Particularity the table-scrubbing scene near the beginning.
    • Humourously enough, it was that scene that made this troper aware it was actually a CG movie, having thought it was a live action and doing absolutely no research on the title after catching half of the trailer once.
  • In Tales of the Abyss, if you pay attention, you can see Tearīs breasts jiggle a bit in some game sequences, which supports the fact that the other characters see her as being well endowed.
  • 2008's The Incredible Hulk for PS3/360 features this... for the Hulk himself. Admittedly, there's much less jiggle involved since it's just his pectorals, but still.
  • Even Bleach games can't escape this trope, as seen with Orihime in Shattered Blade.
  • Surprisingly, Guild Wars has jiggle physics, it's just somewhat more realistic than pretty much all of the above examples and surprisingly missable. Different armor sets will offer better levels of support. That said, party hero Livia's, ahem, physics are decidedly noticeable in one infamous cutscene in Eye of the North. This was probably the first time that most players actually realized that there were jiggle physics in the game. The rest probably rolled female elementalists on their first day.
  • Metal Gear Solid 4 takes this to its logical conclusion with interactive jiggle physics. Shaking the motion-sensitive controller while communicating with a female support character or fighting a female boss outside of her suit causes their breasts to bounce.
  • In Sonic Adventure 2, Rouge the Bat seemed to have no support for that wave action there. It wasn't even realistic.
  • In a non-video game example, the manufacturers of the "Shock Absorber" jog bra have a (NSFW) Flash-based 3D bounce simulator, tunable by breast size and level of activity. The jiggling becomes hypnotic after a while.
  • Lulu's Victory Pose from Final Fantasy X certainly qualifies when it comes to demostrate the Jiggle Physics present in the game.
  • Jenny and Uranus (and to a lesser extent, Shina and Alice) from Bloody Roar: Primal Fury all have a considerable amount of bounce to the pixellated ounce.
  • The NPC Nao of Mabinogi has very large breasts that are arguably the most mobile parts of her body.
  • If your character in Final Fantasy Crystal Chronicles is a Selkie female, you're going to experience a lot of this. It's not very noticeable at all once you're running around in-game, but as soon as you highlight her on the character selection screen... it's bamboozling. It's also worth mentioning that Selkies show up more often as females than males (including on the game's cover). Probably because they're Stripperiffic to boot.
    • I think it's supposed to be the fur on her clothes.
  • *COUGH*
  • Subtly lampshaded in Baten Kaitos Origins. On Sagi's home island, the shop is tended to by a female shopkeeper who demonstrates this trope. Right across the street, you'll find an old man ogling her.